Does hierarchical decomposition of points, selectable as hierarchical
.
More...
Public Member Functions | |
hierarchGeomDecomp (const hierarchGeomDecomp &)=delete | |
No copy construct. More... | |
void | operator= (const hierarchGeomDecomp &)=delete |
No copy assignment. More... | |
TypeName ("hierarchical") | |
Runtime type information. More... | |
hierarchGeomDecomp (const Vector< label > &divisions) | |
Construct with number of x/y/z division (no coefficients or constraints) More... | |
hierarchGeomDecomp (const dictionary &decompDict, const word ®ionName="") | |
Construct given decomposition dictionary and optional region name. More... | |
virtual | ~hierarchGeomDecomp ()=default |
Destructor. More... | |
virtual bool | parallelAware () const |
Hierarchical is aware of processor boundaries. More... | |
virtual labelList | decompose (const pointField &points, const scalarField &weights=scalarField::null()) const |
Return for every coordinate the wanted processor number. using uniform or specified point weights. More... | |
virtual labelList | decompose (const polyMesh &mesh, const pointField &cc, const scalarField &cWeights=scalarField::null()) const |
Return for every coordinate the wanted processor number. More... | |
virtual labelList | decompose (const CompactListList< label > &globalCellCells, const pointField &cc, const scalarField &cWeights=scalarField::null()) const |
Explicitly provided connectivity. More... | |
virtual labelList | decompose (const labelListList &globalCellCells, const pointField &cc, const scalarField &cWeights=scalarField::null()) const |
Return for every coordinate the wanted processor number. More... | |
Public Member Functions inherited from geomDecomp | |
geomDecomp (const Vector< label > &divisions) | |
Construct with number of x/y/z division (no coefficients or constraints) More... | |
geomDecomp (const word &derivedType, const dictionary &decompDict, int select=selectionType::DEFAULT) | |
Construct for derived type name and decomposition dictionary. More... | |
geomDecomp (const word &derivedType, const dictionary &decompDict, const word ®ionName, int select=selectionType::DEFAULT) | |
Construct for derived type name, decomposition dictionary and region name. More... | |
virtual bool | geometric () const |
Purely geometric methods. More... | |
Public Member Functions inherited from decompositionMethod | |
decompositionMethod (const decompositionMethod &)=delete | |
No copy construct. More... | |
void | operator= (const decompositionMethod &)=delete |
No copy assignment. More... | |
TypeName ("decompositionMethod") | |
Runtime type information. More... | |
declareRunTimeSelectionTable (autoPtr, decompositionMethod, dictionary,(const dictionary &decompDict, const word ®ionName),(decompDict, regionName)) | |
decompositionMethod (const dictionary &decompDict, const word ®ionName="") | |
Construct given the decomposition dictionary, optionally region-specific. More... | |
virtual | ~decompositionMethod ()=default |
Destructor. More... | |
label | nDomains () const noexcept |
Number of domains. More... | |
virtual labelList | decompose (const polyMesh &mesh, const labelList &cellToRegion, const pointField ®ionPoints, const scalarField ®ionWeights=scalarField::null()) const |
Return for every coordinate the wanted processor number. More... | |
void | setConstraints (const polyMesh &mesh, boolList &blockedFace, PtrList< labelList > &specifiedProcessorFaces, labelList &specifiedProcessor, List< labelPair > &explicitConnections) const |
Helper: extract constraints: More... | |
void | applyConstraints (const polyMesh &mesh, const boolList &blockedFace, const PtrList< labelList > &specifiedProcessorFaces, const labelList &specifiedProcessor, const List< labelPair > &explicitConnections, labelList &finalDecomp) const |
Helper: apply constraints to a decomposition. More... | |
virtual labelList | decompose (const polyMesh &mesh, const scalarField &cellWeights, const boolList &blockedFace, const PtrList< labelList > &specifiedProcessorFaces, const labelList &specifiedProcessor, const List< labelPair > &explicitConnections) const |
labelList | decompose (const polyMesh &mesh, const scalarField &cWeights) const |
Decompose a mesh. More... | |
Additional Inherited Members | |
Static Public Member Functions inherited from decompositionMethod | |
static label | nDomains (const dictionary &decompDict, const word ®ionName="") |
Return region-specific or top-level numberOfSubdomains entry. More... | |
static const dictionary & | optionalRegionDict (const dictionary &decompDict, const word ®ionName) |
Return an optional region-specific dictionary from "regions" sub-dictionary, or dictionary::null on failure. More... | |
static autoPtr< decompositionMethod > | New (const dictionary &decompDict, const word ®ionName="") |
Return a reference to the selected decomposition method, optionally region-specific. More... | |
static void | calcCellCells (const polyMesh &mesh, const labelList &agglom, const label nLocalCoarse, const bool parallel, CompactListList< label > &cellCells) |
Determine (local or global) cellCells from mesh agglomeration. More... | |
static void | calcCellCells (const polyMesh &mesh, const labelList &agglom, const label nLocalCoarse, const bool parallel, CompactListList< label > &cellCells, CompactListList< scalar > &cellCellWeights) |
Determine (local or global) cellCells and face weights from mesh agglomeration. More... | |
Protected Types inherited from decompositionMethod | |
enum | selectionType { DEFAULT = 0, EXACT = 1, MANDATORY = 2, NULL_DICT = 4 } |
Selection type when handling the coefficients dictionary. More... | |
Protected Member Functions inherited from geomDecomp | |
tmp< pointField > | adjustPoints (const pointField &) const |
Apply delta (jitter) or rotation to coordinates. More... | |
void | checkDecompositionDirections (const Vector< label > &) const |
Check that mesh directions are compatible with decomposition. More... | |
Protected Member Functions inherited from decompositionMethod | |
const dictionary & | findCoeffsDict (const word &coeffsName, int select=selectionType::DEFAULT) const |
Locate coeffsName dictionary or the fallback "coeffs" dictionary. More... | |
decompositionMethod (const label numDomains) | |
Construct with specified number of domains, no coefficients or constraints. More... | |
Static Protected Member Functions inherited from decompositionMethod | |
static const dictionary & | findCoeffsDict (const dictionary &dict, const word &coeffsName, int select=selectionType::DEFAULT) |
Locate coeffsName dictionary or the fallback "coeffs" dictionary within an enclosing dictionary. More... | |
Protected Attributes inherited from geomDecomp | |
Vector< label > | n_ |
The divisions. More... | |
Vector< direction > | order_ |
Decomposition order in terms of components (optional) More... | |
const dictionary & | coeffsDict_ |
Coefficients for all derived methods. More... | |
Protected Attributes inherited from decompositionMethod | |
const dictionary & | decompDict_ |
Top-level decomposition dictionary (eg, decomposeParDict) More... | |
const dictionary & | decompRegionDict_ |
Region-specific decomposition dictionary information. More... | |
label | nDomains_ |
Number of domains for the decomposition. More... | |
PtrList< decompositionConstraint > | constraints_ |
Optional constraints. More... | |
Does hierarchical decomposition of points, selectable as hierarchical
.
Works by first sorting the points in x direction into equal sized bins, then in y direction and finally in z direction.
Uses single array to hold decomposition which is indexed as if it is a 3 dimensional array:
finalDecomp[i,j,k] is indexed as
i*n[0]*n[1] + j*n[1] + k
E.g. if we're sorting 'xyz': the first sort (over the x-component) determines in which x-domain the point goes. Then for each of the x-domains the points are sorted in y direction and each individual x-domain gets split into three y-domains. And similar for the z-direction.
Since the domains are of equal size the maximum difference in size is n[0]*n[1] (or n[1]*n[2]?) (small anyway)
Method coefficients:
Property | Description | Required | Default |
---|---|---|---|
n | (nx ny nz) | yes | |
order | order of operation | no | xyz |
delta | delta (jitter) for rotation matrix | no | 0.001 |
transform | cartesian coordinate transformation | no |
Definition at line 97 of file hierarchGeomDecomp.H.
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delete |
No copy construct.
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explicit |
Construct with number of x/y/z division (no coefficients or constraints)
Definition at line 670 of file hierarchGeomDecomp.C.
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explicit |
Construct given decomposition dictionary and optional region name.
Definition at line 677 of file hierarchGeomDecomp.C.
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virtualdefault |
Destructor.
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delete |
No copy assignment.
TypeName | ( | "hierarchical" | ) |
Runtime type information.
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inlinevirtual |
Hierarchical is aware of processor boundaries.
Implements decompositionMethod.
Definition at line 248 of file hierarchGeomDecomp.H.
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virtual |
Return for every coordinate the wanted processor number. using uniform or specified point weights.
Implements geomDecomp.
Definition at line 689 of file hierarchGeomDecomp.C.
References Foam::constant::electromagnetic::e, Foam::endl(), Foam::identity(), Foam::max(), points, Foam::returnReduce(), Foam::returnReduceAnd(), UList< T >::size(), WarningInFunction, and Foam::Zero.
Referenced by hierarchGeomDecomp::decompose().
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inlinevirtual |
Return for every coordinate the wanted processor number.
Use the mesh connectivity (if needed). With uniform or specified point weights.
Implements decompositionMethod.
Definition at line 270 of file hierarchGeomDecomp.H.
References geomDecomp::checkDecompositionDirections(), hierarchGeomDecomp::decompose(), and mesh.
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inlinevirtual |
Explicitly provided connectivity.
globalCellCells | unused |
Implements decompositionMethod.
Definition at line 284 of file hierarchGeomDecomp.H.
References hierarchGeomDecomp::decompose().
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inlinevirtual |
Return for every coordinate the wanted processor number.
Explicitly provided connectivity - does not use mesh_. The connectivity is equal to mesh.cellCells() except for
globalCellCells | unused |
Implements decompositionMethod.
Definition at line 304 of file hierarchGeomDecomp.H.
References hierarchGeomDecomp::decompose().